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Re: [fedora-virt] [RFC/PATCH] libguestfs: build Debian based appliance



On Tue, Jun 30, 2009 at 12:31:33PM +0100, Richard W.M. Jones wrote:
> On Tue, Jun 30, 2009 at 12:19:33PM +0200, Guido Günther wrote:
> > Hi Rich,
> > On Tue, Jun 30, 2009 at 10:01:59AM +0100, Richard W.M. Jones wrote:
> > > This one is a bit of trouble.  It broke Fedora support, but I think
> > > was just because the sym53c8xx.ko module was missing from my
> > > appliance.  I'm going to try with that.
> > Attached patch has what I came up with to support most of QEMUs hardware
> > as used by the appliance.
> [...]
> > The problem here is that the "blockdev /dev/sda" call fails since sda is
> > missing completely with udev. Without having looked at this further I
> > assume that libguestfs internally expects the blockdev call to succeed
> > since it assumes /dev/sda is there due to static device node creation.
> > However if we switch to if=scsi this will work anyways.
> 
> Actually the problem was just down to the devices taking a long time
> to initialize.  We would need to call/load 'scsi_wait_scan.ko' and
> use 'udevadm settle'.
> 
> I think, however, we should just use virtio (virtio_blk.ko).  This is
> faster, more reliable, and available everywhere we care about.
Sure. I'm fine with that. However including the other modules for
SCSI/IDE won't hurt IMHO (they don't take up much space), this can be
helpful for testing the appliance.
Cheers,
 -- Guido


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